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    • 48. 发明授权
    • Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings
    • 生物可降解聚合物,其生产方法及其生产可生物降解的模制品的用途
    • US06201034B1
    • 2001-03-13
    • US09395733
    • 1999-09-14
    • Volker WarzelhanGunnar SchornickBernd BruchmannUrsula SeeligerMotonori YamamotoPeter Bauer
    • Volker WarzelhanGunnar SchornickBernd BruchmannUrsula SeeligerMotonori YamamotoPeter Bauer
    • C08J900
    • C08L3/02C08G18/4216C08G18/4219C08G18/4277C08G18/428C08G18/4286C08G18/4676C08G18/6659C08G63/20C08G63/60C08G2230/00C08L75/06C09D167/00C09K17/52Y02A40/284Y10S525/938Y10T428/31547Y10T428/31786Y10T428/31794C08L2666/02C08L2666/26C08L2666/36
    • Biodegradable polyesters P1 obtainable by reaction of a mixture consisting essentially of (a1) a mixture consisting essentially of from 35 to 95 mol % of adipic acid or ester-forming derivatives thereof or mixtures thereof, from 5 to 65 mol % of terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and from 0 to 5 mol % of a sulfonate compound, the sum of the individual mole percentages being 100 mol %, and (a2) a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, the molar ratio of (a1) to (a2) being chosen within the range from 0.4:1 to 1.5:1, with the proviso that the polyesters P1 have a molecular weight (Mn) within the range from 5000 to 50,000 g/mol, a viscosity number within the range from 30 to 350 g/ml (measured in 50:50 w/w o-dichlorobenzene/phenol at a concentration of 0.5% by weight of polyester P1 at 25° C.) and a melting point within the range from 50 to 170° C. and with the further proviso that the polyesters P1 are prepared using from 0.01 to 5 mol %, based on the molar quantity used of component (a1), of a compound D having at least three groups capable of ester formation, and further biodegradable polymers and thermoplastic molding compositions, processes for the preparation thereof, use thereof for producing biodegradable moldings, and adhesives, biodegradable moldings, foams and blends with starch obtainable from the polymers or molding compositions of the present invention.
    • 可生物降解的聚酯P1可通过基本上由(a1)基本上由35至95摩尔%的己二酸或其酯形成衍生物或其混合物组成的混合物,混合物,5-65摩尔%的对苯二甲酸或酯 - 形成其衍生物或其混合物,和0-5mol%的磺酸盐化合物,各摩尔百分比的总和为100mol%,和(a2)选自C2-C6-烷二醇和C5的二羟基化合物 -C1-环烷二醇,(a1)与(a2)的摩尔比选择在0.4:1至1.5:1的范围内,条件是聚酯P1的分子量(Mn)在5000至 50,000g / mol,粘度数在30-350g / ml的范围内(在25℃下在50:50w / w邻二氯苯/苯酚中的浓度为聚酯P1的0.5重量%测量)和 熔点在50至170℃的范围内,进一步的条件是, 基于组分(a1)的摩尔量,具有至少三个能够形成酯的基团的化合物D,以及其它可生物降解的聚合物和热塑性模塑组合物,使用0.01至5mol% 其制备方法,用于生产可生物降解的模制品,以及粘合剂,可生物降解的模制品,泡沫和可从本发明的聚合物或模塑组合物获得的淀粉的共混物。